The James White Library is the main academic library at Andrews University, named for the husband of Ellen G. White, one of the founders of the Seventh-day Adventist Church. The library houses the Center for Adventist Research, which holds the largest collection of Ellen G. White's original manuscripts, letters, and diaries anywhere in the world.
Even for non-Adventist visitors, the Heritage Room on the upper floor is worth a look. It includes early Adventist printing presses, photographs of the movement's nineteenth-century leaders, and rotating exhibits drawn from the archive. Access is free during library hours.